Aurora borealis 13./14.11.2012

Observed phenomena: Aurora borealis
Date: 13./14.11.2012
Time: 19:25-20:50
Observing place: Kuru, Ylöjärvi, Finland
Observing method: Photography
Technical information about photographing equipment: Camera: Canon EOS 1100D, lens: Samyang 8mm fish eye, Canon EF-S 18-55mm IS
Observing conditions: Clear sky at the beginnig, getting cloudy in the end, -3 °C, calm

This night I went to my observing site with my flatmate to show him some stars and celestial objects. At the beginning the sky was clear and relatively dark, and we could see many celestial wonders! But then the sky started to get hazy. Apparently there was some thin cloud veil in the sky, but also there was some diffuse aurora veil.

A little bit later the aurorae became more obvious, when an aurora belt appeared in the northern horizon. At the beginning this belt was pretty quiet, but then it suddenly got more active, brighter and rayed, and the rays were moving quickly along the belt. This didn’t last long, and actually the clouds also got thicker and thicker, and eventually they obscured the aurorae totally.

During this night came many observations from all over Finland about northern lights. Many observers reported, that they had observed red colour with the aurorae. There is a distinct red colour visible also in my aurora photos, but originally I had thought that it was caused by light pollution of near by Parkano town. But because also many others had seen the redness of the aurorae, it is clear that the redness of the aurorae in my photos was really the redness of the aurorae, and not just light pollution.

More photos can be seen here!


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